whom had praised the song for its mature musical style and concept as opposed to their previous singles. On the night of December 11, 2012, Secret was involved in a car accident. Hyoseong, Jieun and Sunhwa received only a few scratches and knee pain, but Hana suffered broken ribs and a bruised lung and therefore halted from Secret's activities in order to recover. On December 27, Sunhwa and labelmate B.A.P's Youngjae teamed up to release a digital single titled "Everything is Pretty" as a present for Secret and B.A.P fans. 2013–2014: Letter from Secret, Gift From Secret and Secret Summer In January 2013, Secret continued to perform "Talk That" on various music and award shows without Hana. Hana ended her hiatus and officially rejoined Secret when she performed at the 22nd Seoul Music Awards and won a bonsang award. On March 29, Secret held their solo concert in Singapore, performing in front of 5,000 fans at the Marina Bay Sands Convention Hall. Secret's fourth mini album, titled Letter from SECRET, with "YooHoo" as the album's lead single, was released on April 30. YooHoo managed to top real time charts such as Mnet, Bugs Olleh, and Sorribada. Secret became one of most searched terms on South Korean portal sites in the midst of their return. In June 2013, Secret signed with Kiss Entertainment for future Japan activities. They also moved from Sony Music to Universal Music Group Japan (Universal D's Sub-Label). On December 9, the group's third single album, Gift From Secret, featuring lead single "I Do I Do" was released. As the album was released during winter TS Entertainment stated that the lead single, "I Do I Do is a lively and warm song and is also reminiscent of carols, which will match well with the coming winter season." I Do I Do was produced by Kang Ji-won and Kim Ki-bum. On February 5, 2014, Secret released the Japanese version of their Korean single "I Do I Do" along with a music video, which marks their first Japanese release with Kiss Entertainment. On May 29, Tower Records Japan revealed that Secret would release a single album in Japan. Before the release of their fifth Japanese single, Secret held their third Japan tour titled 2014 Secret's Summer Live ~YooHoo~. On July 23 Secret released a Japanese version of their Korean single "YooHoo". On August 11, Secret released their fifth mini album